So yesterday I updated the BIOs on my Intel DX58SO motherboard and the computer was running fine for about 10 min. Now when I turn the computer on, it looks like it is skipping the BIOs screen and logging into windows. However, the screen goes black after about 2 seconds of the windows login screen being on. When I remove and replace the VGA adapter from my Video card (Radeon HD 6870) the screen flashes on briefly (for about 2 seconds) and then goes black once again. I am trying to roll back my BIOs update with a USB flash drive but I cannot find a proper ISO file that will write to a USB stick. I have done nothing to the computer except update the BIOs, so I think that may be the problem. Also I have tried moving the jumper and the battery. They do not seem to work. Input would be greatly appreciated. Thank you.
that should be the bios version before the new one.
Just take a USB stick, formate\delete it, then copy the .BIO file to the USB stick and reboot pressing F7 to flash from USB.
if the first link doesn't work try this: